ATL User Guide
OM25 OOptical MModem
4
The OM25 DC unit is defined as class II equipment, an EARTH conductor must be connected to
the M3 stud on the rear panel of the unit when using the G.703 interface in accordance with ITU-
T G.703 requirements.
Statement Safety Statements traffic ports:
The Optical Interface has a safety status of CLASS 1 LASER PRODUCT
The Terminal Port has a safety status of EARTHED SELV.
The G.703 Port Connection Port has a safety status of SELV when connected to Unexposed
Environments:
The G.703 Port Connection Port has a safety status of TNV-1 when connected to Exposed
Environments:
Definitions:
Exposed Environment
A TELECOMMUNICATIONS NETWORK is considered to be an exposed environment if one or more
conditions for an unexposed environment are not fulfilled.
Unexposed Environment
A TELECOMMUNICATIONS NETWORK is considered to be an unexposed environment if the
following conditions apply to all parts of the network.
a) The possible effect of indirect lightning has been reduced by measures described in IEC 61312-
1.
b) The possibility of having different earth potentials has been reduced by connecting all
equipment within the network to the same equipotential bonding system (see HD 384).
c) The possibility of power cross/contact has been reduced (see HD 384).
d) The possibility of induced transients and voltages has been reduced.
Manufacturers Declaration*
ATL Telecom Limited declares that this product is in conformity
with the essential requirements of the 'R&TTE directive 1999/5/EC'.
*A copy of the Declaration of Conformity is available upon request from ATL Telecom Ltd.
